Turn-table-operating mechanism.



PATENTED AUG. 25, 1908.

C. E. MOWADE. TURN TABLE OPERATING MECHANISM.

APPLICATION FILED MAY 7,1908.

2 SHEETSSHEET 1.

arwamkoz Q/vi tn duo 4 No. 896,931) v PATENTBD AUG. 25, 1908. 0. E. MGWADE.

TURN TABLE OPERATING MECHANISM.

APPLICATION FILED MAY 7, 1908.

Z SHEETS-SHEET 2.

i 1' I I 2 H/UQH (.3

shim EMCWadtj 1 9? in zoom Be it known, that I, CHAaLEsE-VMCWYiDE,

CHARLES E. MQWADE, or MAT'rooN, 'iLLINoisi.

'ru'mz-rnLn-ornnarme im'cnamsm.

Specification of Letters Patent.-,

Patented angers; eoa- Application ma ia v, 1908. Serial N6. 431,406.

To all whom it may concern.-

citizen of the United States, residing at Mat toon, in the county of Coles' and State of Illinois, have invented certain new and useful Improvementsin. Turn Table Operating Mechanisms, of which the following is a specification. 1 The present invention provides a novel vmechanism particularly designed for moving the platform of turntable structures employedin; connection with railways, the mechanism being intended to be operated by means of the locomotive mounted upon the turntable during the operation of the'latter, and said mechanism also admitting of the turntable being ,operated by hand when required, or found necessary.

'- For-a full understanding of the invention and the" merits thereof and also to acquire a knowledge of the details of construction and the means foreffecting the result, reference is to be had to the following description and accompanying drawings.

. While the invention may'beadapted to difierent forms and conditions bychanges in the structure and. minor details without departing from thespirit or essential features thereof, still the preferred embodimentjis shown in the accompanying drawings, in

Figure 1 is a top plan view of a turntable embodying the invention. 1 '2 is a sectional view of the turntable actuatin mechanism, showing a portion of the it, t 1e parts being illustrated on a larger sca' e. Fig. 3 is a top plan view of the operating mechanism on the same scale as Figs. Z'and 4. Fig. 4 is a side view of the actuating mechanism.

Corresponding and like parts are-referred to in the following description and indicated in all the views of the-drawings by the samereference characters. V

The platform 1 constituting the turntable proper may be of any construction commonly employed for effecting shifting of railway locomotives and-cars. The platform is mounted so as to swing in a horizontal plane about a vertical axis, and in the present instance is adapted to be operated by mechanism constructed in accordance with thisinvention and mounted independently of the platform and having connectiontherewith.

The actuating mechanism is mounted upon a frame 2 which may be of any substantial construction and which is provided at one end w'ithlugs 3- bymeanslof which the frame is pivotally connected to corresponding lugs 4 projected from the framework of. the plat form, 'A-shaft '5-is mounted in bearings at opposite sidesof the framework 2 and is ro- W ed with a drive-wheelfi and aworm w eel 7 L The drive wheel6is grooved in its periphery and ismounted to. travelupon a circular track 8 located in the-bottomjofthe; it.

theshaft 5 by means of a clutch so as tobe thrown into and out of gear according-as the turntable is to be operated by hand or 'mechanically. ,The clutch consistsf'of elements- The drive wheel 6 is adapted tobe securec to l 9 and 10, the element Q'b'eing fast to the drive- Wheel 6. and the element 10 loose upon the shaft 5 andsec'ured'thereto by a feather and spline connection so as to rotate therewith; A shipper lever 11 is ,provided'to throw the clutch into and out of gear. When the'clutch; is unship ed, the drive wheel 6 is adapted to' turn free y upon the shaft 5. I A longitudinal shaft'12 is mounted in bearings '13 attached to a side piece of the frame2' and is providedwitha worrn'14 and a gear Ball bearings 16 are provided be;

wheel 15. tween the ends of the worm 14 and the bearings 13 to sustain: the end thrustfincident to the operation of the mech anism'. The

worm gearing 14 and'7 provided between the.

shafts 12 and 5 results in augmenting the power expended for moving the platform and at thesame time provides a lock for holding the turntable in the adjusted position, thereby precluding the necessity for providing extra means for locking the turntable in any desired osition. v

A s aft 17 parallels the shaft 12-and is provided at opposite ends with crank wheels 18 which are connected.- bynpitmen 19 with cross heads having connection with the-pistons of a pair of engines 20. The crank wheels 18 are set quartering so as to prevent the engines stoppinguon adead center. A

shaft 21 is mounted in bearings 22and is provided at opposite ends with disks 23 in crank wheels 17. A hand lever 26 is fast to the shaft 21 and is provided with a latch 27 adapted. to enter anyone of a series of three notches in a curved bar 28 so .as to lock the lever 26 in the. desired position according'as the engine is running forward, backward or is at rest. Rods or bars 29 connect the links 1 with the valve stems 30, links glSUlPPOI'lF nection.

ing the parts 29 and 30 attheir, points 'of con The position of the operating iever 26' controls the position of the valves of the engines. "When the lever-26 is thrown for; ward, as indicated in F 1g. '2, the "engine runs forward, and. when the lever is movedto the opposite endof the bar 28,-,the engine is versed, and when said lever-occupies an intermediate position of the bar 28, steam or mot ve medium is cut oil from. the engine, and the-latter is at rest; It is-to be under stood that the valve n'iechanisnrniay he 1 as to keep the parts 7 and adapted for general use and is not restricted .in the manner shown.

A housing 31 is adapted to inclose apart of the worm gearing and receives a quantity of lubricant, "so 114 in prime runondition. J

own most clearly in Fig. 1, the franlework 1; ovided with the actuating ZIXEChEtD-w ism is-jvholly independent of the framework of the platform 1 and is pivotally connected thereto. The entire weight of-the i'ifftlim work 2 and the mechanism. mounted thereon is supported; by the drive'v'heel 6 there y creatingsuilicient friction between thed.r1ve

wheel and rail 8 to insure movement of the 'turi'italvle when. the actuating,inechanlsin is nroperation,

Having thus described the invention,

work, a shaft provided with, a drive wheel, a

worm wheel mounted upon said shaft, a secfor imparting rotation to the second shaft;

4. iii-actuating mechanism of the jchar" end shaftla'rranged at an angle to the first mentioned shaft and providedjwith a worm in mesh: with said vi orni Wheel, andlm'eans.

for imparting rotation .to the shaft provided with. the said worm.

' 2.1111} operating mechanism substantially as set" forth, the combination of a framework, a shaft provided with a drive Wheel, a worm wheel'mount-ed upon'said shaft, a second shaft arranged at an angle tothe first mentioned shaft and provided with a worm in mesh with said worrnwhe'el, bearings for said second shaft upon opposite sides of the worm thereof, anti-friction devices between the said worni and the ad acent bearlngs to sustain end thrust, and means for imparting rotation to said second shaft.

3. In mechanism of the character s eci-' tied, the combination of a framewori, a

shaft, a drive wheel loose upo'n said shaft, a

clutch for throwing the drive wheel into and out of gear, a worm Wheel fastto said shaft, a

second shaft arrangedat an angle to the first ment oned shaft and provided-with a worm in mesh with said worm wheel, and means aster specified, comprising an engine and a SlHiQ valve controlling admission to [the i110- tive medium. thereto, a crank wheel having connection with the piston of the engine, a dislg'a block slidable upon the disk, a link connecting said block with the crank wheel, an operating lever for, turning the shaft provided with said disk to change the relatixze position of the block mounted thereon, and

connecting means between said link and the stem ofjth'e slide valve.

. In testimony whereof'l afiixnly signature in presence of two witnesses. a a CHARLES E. MoWADE. [L. s] Witnesses: 5

MARX THODE, John (Lennon. 

